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    <title>hello Python | 欢迎参观小灰灰的网站哟 ヾ(◍°∇°◍)ﾉﾞ ~ | It&#39;s founded on March 9, 2019 and the open source address for the blog notes https://github.com/YUbuntu0109/YUbuntu0109.github.io</title>
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    <meta name="description" content="学习笔记 : hello PythonPython 简介Python ( 英国发音：/ˈpaɪθən/，美国发音：/ˈpaɪθɑːn/ )，是一种面向对象的解释型计算机程序设计语言，由荷兰人 GuidovanRossum 于 1989 年发明，第一个公开发行版发行于 1991 年 Python 是纯粹的自由软件，源代码和解释器 CPython 遵循 GPL( GNUGeneralPublicLic">
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<meta property="og:description" content="学习笔记 : hello PythonPython 简介Python ( 英国发音：/ˈpaɪθən/，美国发音：/ˈpaɪθɑːn/ )，是一种面向对象的解释型计算机程序设计语言，由荷兰人 GuidovanRossum 于 1989 年发明，第一个公开发行版发行于 1991 年 Python 是纯粹的自由软件，源代码和解释器 CPython 遵循 GPL( GNUGeneralPublicLic">
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<meta name="twitter:description" content="学习笔记 : hello PythonPython 简介Python ( 英国发音：/ˈpaɪθən/，美国发音：/ˈpaɪθɑːn/ )，是一种面向对象的解释型计算机程序设计语言，由荷兰人 GuidovanRossum 于 1989 年发明，第一个公开发行版发行于 1991 年 Python 是纯粹的自由软件，源代码和解释器 CPython 遵循 GPL( GNUGeneralPublicLic">
    
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        <h1 class="title">hello Python</h1>
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                <time datetime="2019-11-08T19:45:04.000Z" itemprop="datePublished" class="page-time">
  2019-11-08
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            <ol class="post-toc"><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#学习笔记-hello-Python"><span class="post-toc-number">1.</span> <span class="post-toc-text">学习笔记 : hello Python</span></a><ol class="post-toc-child"><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#Python-简介"><span class="post-toc-number">1.1.</span> <span class="post-toc-text">Python 简介</span></a></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#Python-的应用"><span class="post-toc-number">1.2.</span> <span class="post-toc-text">Python 的应用</span></a></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#Python-的应用领域"><span class="post-toc-number">1.3.</span> <span class="post-toc-text">Python 的应用领域</span></a></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#Python-的应用方向"><span class="post-toc-number">1.4.</span> <span class="post-toc-text">Python 的应用方向</span></a></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#Python-程序的执行原理"><span class="post-toc-number">1.5.</span> <span class="post-toc-text">Python 程序的执行原理</span></a></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#实现一个简单的学生管理系统"><span class="post-toc-number">1.6.</span> <span class="post-toc-text">实现一个简单的学生管理系统</span></a></li></ol></li></ol>
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        <h1 class="post-card-title">hello Python</h1>
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            <time class="post-time" title="2019-11-08 19:45:04" datetime="2019-11-08T19:45:04.000Z"  itemprop="datePublished">2019-11-08</time>

            


            

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            <h2 id="学习笔记-hello-Python"><a href="#学习笔记-hello-Python" class="headerlink" title="学习笔记 : hello Python"></a>学习笔记 : hello Python</h2><h3 id="Python-简介"><a href="#Python-简介" class="headerlink" title="Python 简介"></a>Python 简介</h3><p><em>Python ( 英国发音：<code>/ˈpaɪθən/</code>，美国发音：<code>/ˈpaɪθɑːn/</code> )，是一种面向对象的解释型计算机程序设计语言，由荷兰人 GuidovanRossum 于 1989 年发明，第一个公开发行版发行于 1991 年</em></p>
<p><em>Python 是纯粹的自由软件，源代码和解释器 CPython 遵循 GPL( GNUGeneralPublicLicense )协议. Python语法简洁清晰，特色之一是强制用空白符( whitespace )作为语句缩进</em></p>
<h3 id="Python-的应用"><a href="#Python-的应用" class="headerlink" title="Python 的应用"></a>Python 的应用</h3><ul>
<li>系统编程</li>
<li>图形处理</li>
<li>数学处理</li>
<li>文本处理</li>
<li>数据库编程</li>
<li>网络编程</li>
<li>Web编程</li>
<li>多媒体应用</li>
<li>pymo引擎</li>
<li>黑客编程</li>
</ul>
<h3 id="Python-的应用领域"><a href="#Python-的应用领域" class="headerlink" title="Python 的应用领域"></a>Python 的应用领域</h3><ul>
<li>Web 应用开发</li>
<li>操作系统管理，服务器运维的自动化脚本</li>
<li>科学计算</li>
<li>桌面软件</li>
<li>服务器软件( 网络软件 )</li>
<li>游戏</li>
<li>构思实现，产品早期原型迭代</li>
</ul>
<h3 id="Python-的应用方向"><a href="#Python-的应用方向" class="headerlink" title="Python 的应用方向"></a>Python 的应用方向</h3><ul>
<li>常规软件开发</li>
<li>科学计算</li>
<li>自动化运维</li>
<li>云计算</li>
<li>WEB开发</li>
<li>网络爬虫</li>
<li>数据分析</li>
<li>人工智能</li>
</ul>
<h3 id="Python-程序的执行原理"><a href="#Python-程序的执行原理" class="headerlink" title="Python 程序的执行原理"></a>Python 程序的执行原理</h3><p><em>Python 不同于类似 C/C++ 之类的编译性语言，其不需要编译成二进制代码，它可以直接从源代码运行程序. 既 Python 解释器先会将源代码转换为字节码( 并非二进制机器码，其需要进一步编译才能够被机器识别. 如果 Python 进程在机器上拥有写入权限，那么它将把程序的字节码保存为一个以<code>.pyc</code>为扩展名的文件 )，然后再把编译好的字节码转发到 Python 虚拟机( PVM )中进行执行.</em></p>
<h3 id="实现一个简单的学生管理系统"><a href="#实现一个简单的学生管理系统" class="headerlink" title="实现一个简单的学生管理系统"></a>实现一个简单的学生管理系统</h3><p><em>早上在图书馆花了<code>2</code>个小时左右时间看完了 <code>《Python 快速编程入门》</code> 书籍的前六章，毕竟我是有编程基础的嘿嘿，况且编程语言之间是相通的. 为了熟悉 Python 函数的基本使用，晚上回到寝室写了一个简单的学生管理系统，相比 <code>hello world implemented by Python</code> 程序是不是有点急啦哈哈哈~ 代码如下所示 :</em></p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">"""</span></span><br><span class="line"><span class="string">Project name : python-learning</span></span><br><span class="line"><span class="string">Description : A SIMPLE STUDENT MANAGEMENT SYSTEM</span></span><br><span class="line"><span class="string">Author : 黄宇辉</span></span><br><span class="line"><span class="string">Version : 1.0</span></span><br><span class="line"><span class="string">Website : https://yubuntu0109.github.io/</span></span><br><span class="line"><span class="string">Created on 11/8/2019-6:47 PM</span></span><br><span class="line"><span class="string">"""</span></span><br><span class="line"></span><br><span class="line"><span class="comment"># CREATE A LIST WHICH BE USED TO STORE ALL OF STUDENT INFORMATIONS</span></span><br><span class="line">student_infos = []</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># OUTPUT THE MENU INFO INTO THE CONSOLE</span></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">print_menu</span><span class="params">()</span>:</span></span><br><span class="line">    print(<span class="string">"="</span> * <span class="number">50</span>)</span><br><span class="line">    print(<span class="string">"### A SIMPLE STUDENT MANAGEMENT SYSTEM v1.0 ###"</span>)</span><br><span class="line">    print(<span class="string">"1:ADD THE STUDENT INFORMATION"</span>)</span><br><span class="line">    print(<span class="string">"2:DELETE THE STUDENT INFORMATION"</span>)</span><br><span class="line">    print(<span class="string">"3:MODIFY THE STUDENT INFORMATION"</span>)</span><br><span class="line">    print(<span class="string">"4:DISPLAY ALL OF STUDENT INFORMATIONS"</span>)</span><br><span class="line">    print(<span class="string">"5:SAVE ALL OF STUDENT INFORMATIONS"</span>)</span><br><span class="line">    print(<span class="string">"0:EXIT"</span>)</span><br><span class="line">    print(<span class="string">"="</span> * <span class="number">50</span>)</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># ADD A NEW STUDENT INFORMATION</span></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">add_info</span><span class="params">()</span>:</span></span><br><span class="line">    new_name = input(<span class="string">"PLEASE ENTER THE NEW STUDENT'S NAME: "</span>)</span><br><span class="line">    new_sex = input(<span class="string">"PLEASE ENTER THE NEW STUDENT'S SEX: "</span>)</span><br><span class="line">    new_phone = input(<span class="string">"PLEASE ENTER THE NEW STUDENT'S PHONE: "</span>)</span><br><span class="line">    new_info = &#123;<span class="string">'name'</span>: new_name, <span class="string">'sex'</span>: new_sex, <span class="string">'phone'</span>: new_phone&#125;</span><br><span class="line">    student_infos.append(new_info)</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># DELETE THE SPECIFIED STUDENT INFORMATION BY NO</span></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">del_info</span><span class="params">()</span>:</span></span><br><span class="line">    del_number = int(input(<span class="string">"PLEASE THE SPECIFIED STUDENT' NO: "</span>)) - <span class="number">1</span>  <span class="comment"># index</span></span><br><span class="line">    <span class="keyword">del</span> student_infos[del_number]</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># MODIFY THE SPECIFIED STUDENT INFORMATION BY NO</span></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">modify_info</span><span class="params">()</span>:</span></span><br><span class="line">    student_id = int(input(<span class="string">"PLEASE THE STUDENT NO: "</span>))</span><br><span class="line">    new_student_name = input(<span class="string">"PLEASE ENTER THE NEW NAME: "</span>)</span><br><span class="line">    new_student_sex = input(<span class="string">"PLEASE ENTER THE NEW SEX: "</span>)</span><br><span class="line">    new_student_phone = input(<span class="string">"PLEASE ENTER THE NEW PHONE: "</span>)</span><br><span class="line">    student_infos[student_id - <span class="number">1</span>][<span class="string">'name'</span>] = new_student_name</span><br><span class="line">    student_infos[student_id - <span class="number">1</span>][<span class="string">'sex'</span>] = new_student_sex</span><br><span class="line">    student_infos[student_id - <span class="number">1</span>][<span class="string">'phone'</span>] = new_student_phone</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># DISPLAY ALL OF STUDENT INFORMATIONS</span></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">show_infos</span><span class="params">()</span>:</span></span><br><span class="line">    print(<span class="string">"="</span> * <span class="number">50</span>)</span><br><span class="line">    print(<span class="string">"ALL OF STUDENT INFORMATION BE SHOWED AS FOLLOW"</span>)</span><br><span class="line">    print(<span class="string">"="</span> * <span class="number">50</span>)</span><br><span class="line">    print(<span class="string">"NO       NAME        SEX     PHONE"</span>)</span><br><span class="line">    i = <span class="number">1</span></span><br><span class="line">    <span class="keyword">for</span> temp <span class="keyword">in</span> student_infos:</span><br><span class="line">        print(<span class="string">"%d       %s      %s      %s"</span> % (i, temp[<span class="string">'name'</span>], temp[<span class="string">'sex'</span>], temp[<span class="string">'phone'</span>]))</span><br><span class="line">        i += <span class="number">1</span></span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># SAVE ALL OF STUDENT INFORMATIONS</span></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">save_data</span><span class="params">()</span>:</span></span><br><span class="line">    <span class="keyword">try</span>:</span><br><span class="line">        file = open(<span class="string">"db.data"</span>, <span class="string">"w"</span>)</span><br><span class="line">        file.write(str(student_infos))</span><br><span class="line">        file.close()</span><br><span class="line">    <span class="keyword">except</span> FileNotFoundError:</span><br><span class="line">        print(<span class="string">"CATCH THE EXCEPTION: THE SPECIFIED FILE NOT EXIST!"</span>)</span><br><span class="line">    <span class="keyword">else</span>:  <span class="comment"># so simple and so cool than Java</span></span><br><span class="line">        print(<span class="string">"SAVE ALL OF STUDENT INFORMATIONS SUCCESSFULLY"</span>)</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># RECOVER ALL OF STUDENT INFORMATIONS</span></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">recover_data</span><span class="params">()</span>:</span></span><br><span class="line">    <span class="keyword">global</span> student_infos</span><br><span class="line">    <span class="keyword">try</span>:</span><br><span class="line">        file = open(<span class="string">"db.data"</span>, <span class="string">"wb+"</span>)  <span class="comment"># create new file if the specified file not exist</span></span><br><span class="line">        content = file.read()</span><br><span class="line">        print(content)  <span class="comment"># throw the SyntaxError possibly: unexpected EOF while parsing</span></span><br><span class="line">        student_infos = eval(content)</span><br><span class="line">        file.close()</span><br><span class="line">    <span class="keyword">except</span> (SyntaxError, FileNotFoundError) <span class="keyword">as</span> exception_info:</span><br><span class="line">        print(<span class="string">"CATCH THE EXCEPTION: %s"</span> % exception_info)</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># MAIN FUNCTION</span></span><br><span class="line"><span class="function"><span class="keyword">def</span> <span class="title">main</span><span class="params">()</span>:</span></span><br><span class="line">    recover_data()  <span class="comment"># the specified file must store some datas before reading</span></span><br><span class="line">    <span class="keyword">while</span> <span class="literal">True</span>:</span><br><span class="line">        print_menu()</span><br><span class="line">        key = input(<span class="string">"PLEASE ENTER THE SPECIFIED NO OF MENU: "</span>)</span><br><span class="line">        <span class="keyword">if</span> key == <span class="string">'1'</span>:</span><br><span class="line">            add_info()</span><br><span class="line">        <span class="keyword">elif</span> key == <span class="string">'2'</span>:</span><br><span class="line">            del_info()</span><br><span class="line">        <span class="keyword">elif</span> key == <span class="string">'3'</span>:</span><br><span class="line">            modify_info()</span><br><span class="line">        <span class="keyword">elif</span> key == <span class="string">'4'</span>:</span><br><span class="line">            show_infos()</span><br><span class="line">        <span class="keyword">elif</span> key == <span class="string">'5'</span>:</span><br><span class="line">            save_data()</span><br><span class="line">        <span class="keyword">elif</span> key == <span class="string">'0'</span>:</span><br><span class="line">            quit_confirm = input(<span class="string">"ARE YOU SURE TO QUIT ?( Yes or No ): "</span>)</span><br><span class="line">            <span class="keyword">if</span> quit_confirm == <span class="string">"Yes"</span>:</span><br><span class="line">                <span class="keyword">break</span></span><br><span class="line">            <span class="keyword">else</span>:</span><br><span class="line">                print(<span class="string">"ERROR : PLEASE ENTER THE RIGHT COMMAND !"</span>)</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="comment"># RUN</span></span><br><span class="line">main()</span><br></pre></td></tr></table></figure>
<p><em>程序运行结果如下所示 :</em><br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br></pre></td><td class="code"><pre><span class="line">CATCH THE EXCEPTION: unexpected EOF while parsing (&lt;string&gt;, line 0)</span><br><span class="line"></span><br><span class="line">==================================================</span><br><span class="line">### A SIMPLE STUDENT MANAGEMENT SYSTEM v1.0 ###</span><br><span class="line">1:ADD THE STUDENT INFORMATION</span><br><span class="line">2:DELETE THE STUDENT INFORMATION</span><br><span class="line">3:MODIFY THE STUDENT INFORMATION</span><br><span class="line">4:DISPLAY ALL OF STUDENT INFORMATIONS</span><br><span class="line">5:SAVE ALL OF STUDENT INFORMATIONS</span><br><span class="line">0:EXIT</span><br><span class="line">==================================================</span><br><span class="line">PLEASE ENTER THE SPECIFIED NO OF MENU: 1</span><br><span class="line">PLEASE ENTER THE NEW STUDENT&apos;S NAME: 黄宇辉</span><br><span class="line">PLEASE ENTER THE NEW STUDENT&apos;S SEX: 男</span><br><span class="line">PLEASE ENTER THE NEW STUDENT&apos;S PHONE: 00000000000</span><br><span class="line"></span><br><span class="line"></span><br><span class="line">==================================================</span><br><span class="line">### A SIMPLE STUDENT MANAGEMENT SYSTEM v1.0 ###</span><br><span class="line">1:ADD THE STUDENT INFORMATION</span><br><span class="line">2:DELETE THE STUDENT INFORMATION</span><br><span class="line">3:MODIFY THE STUDENT INFORMATION</span><br><span class="line">4:DISPLAY ALL OF STUDENT INFORMATIONS</span><br><span class="line">5:SAVE ALL OF STUDENT INFORMATIONS</span><br><span class="line">0:EXIT</span><br><span class="line">==================================================</span><br><span class="line">PLEASE ENTER THE SPECIFIED NO OF MENU: 4</span><br><span class="line"></span><br><span class="line">==================================================</span><br><span class="line">ALL OF STUDENT INFORMATION BE SHOWED AS FOLLOW</span><br><span class="line">==================================================</span><br><span class="line">NO       NAME        SEX     PHONE</span><br><span class="line">1        黄宇辉       男      00000000000</span><br><span class="line"></span><br><span class="line"></span><br><span class="line">==================================================</span><br><span class="line">### A SIMPLE STUDENT MANAGEMENT SYSTEM v1.0 ###</span><br><span class="line">1:ADD THE STUDENT INFORMATION</span><br><span class="line">2:DELETE THE STUDENT INFORMATION</span><br><span class="line">3:MODIFY THE STUDENT INFORMATION</span><br><span class="line">4:DISPLAY ALL OF STUDENT INFORMATIONS</span><br><span class="line">5:SAVE ALL OF STUDENT INFORMATIONS</span><br><span class="line">0:EXIT</span><br><span class="line">==================================================</span><br><span class="line">PLEASE ENTER THE SPECIFIED NO OF MENU: 5</span><br><span class="line">SAVE ALL OF STUDENT INFORMATIONS SUCCESSFULLY</span><br><span class="line"></span><br><span class="line">. . . . . .</span><br></pre></td></tr></table></figure></p>
<p><em>使用 Python 写完这个简单程序后，让我指间感觉超轻松，这语法太简洁了吧! 符合我的风格嘿嘿~</em></p>
<blockquote>
<p>推荐给初学 Python 同学的编程书籍 : 《Python 快速编程入门》- 黑马程序员编著  ( 本书对于现在的我来说，一周就可以完成全部的学习咯~ )</p>
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